H02P 23/02
Arrangements or methods for the control of ac motors characterised by a
Official title: specially adapted for optimising the efficiency at low load
H02P23/02 (Arrangements or methods for the control of ac motors characterised by a) appears on 45 US grants and 55 published applications in this corpus.
Search patents in H02P- Granted patents
- 45
- Published applications
- 55
- Assignees
- 36
- Inventors
- 96
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 5 | 4 |
| 2013 | 4 | 4 |
| 2014 | 3 | 3 |
| 2015 | 4 | 2 |
| 2016 | 2 | 4 |
| 2017 | 5 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 4 |
| 2021 | 4 | 4 |
| 2022 | 3 | 3 |
| 2023 | 3 | 4 |
| 2024 | 4 | 7 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Boosted converter for pulsed electric machine control21 Apr 2026US 12,609,646 B2Tula eTechnology, Inc.
- Boost converter state control10 Jun 2025US 12,328,080 B2Carrier Corporation
- Pulse modulated control with field weakening for improved machine efficiency27 May 2025US 12,311,772 B2Tula eTechnology, Inc.
- Systems and methods for component monitoring in an electric motor11 Feb 2025US 12,224,693 B2Regal Beloit America, Inc.
- Method and circuit arrangement for controlling a stepper motor24 Dec 2024US 12,176,841 B2Analog Devices International Unlimited Company
- Motor driving apparatus and method of controlling same24 Sep 2026US 2026/0291423 A1Hyundai Motor Company
- Electrical Power System10 Apr 2025US 2025/0118968 A1InnCat Ltd
- Electric work machine and motor control method26 Dec 2024US 2024/0429846 A1Makita Corporation
- Method and circuit arrangement for controlling a stepper motor8 Aug 2024US 2024/0266977 A1Analog Devices International Unlimited Company
- Boosted converter for pulsed electric machine control25 Apr 2024US 2024/0136968 A1Tula eTechnology, Inc.
Most cited
By later US patents
- Indoor blower variable speed drive for reduced airflow70US 6,282,910 B1American Standard International Inc. · 2001
- Boosted converter for pulsed electric machine control42US 10,944,352 B2Tula eTechnology, Inc. · 2021
- Pulse modulated control with field weakening for improved motor efficiency23US 11,167,648 B1Tula eTechnology, Inc. · 2021
- System and method of dynamic regulation of real power to a load20US 8,232,760 B2Easton Corporation · 2012
- System and method for providing constant loading in AC power applications18US 8,120,307 B2The Powerwise Group, Inc. · 2012